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#40213 10/07/25 12:55 AM
Joined: Jul 2020
Posts: 281
Likes: 5
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enthusiast
enthusiast
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Joined: Jul 2020
Posts: 281
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On the tk cars with telescopic pistons has anyone moved the sensors away from the pistons and just had something from the crosshead break the beam? If so how'd it work if not can someone let me know why that wouldnt work. If the cross head is staying level isn't that the most important thing there?

Joined: Mar 2017
Posts: 177
Likes: 9
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Joined: Mar 2017
Posts: 177
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I've seen multiple jobs that people have just taped over the sensors instead of doing a cylinder repack and valves.

Joined: Apr 2020
Posts: 520
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addict
addict
Joined: Apr 2020
Posts: 520
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Once the crosshead it out of level it's too late. BOOM! Lol

Joined: Dec 2015
Posts: 1,769
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ElevatorPractitioner
ElevatorPractitioner
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Joined: Dec 2015
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You don’t have to trick it, you could just delete the IOs but it’s definitely a bad idea. With a 2 or 3 stage jack you can have a level cross head with the stages in each jack out of sync with each other. You need the sensors to trigger a resync before it gets so far out that one of the stages will top or bottom out before car gets to the floor. It can be pretty violent and rack the crap out of the car.

Joined: Jul 2020
Posts: 281
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enthusiast
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Joined: Jul 2020
Posts: 281
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Thanks, Thats all good info and makes sense. Its too bad that pop it valve is not easier to change out. Or a better design.


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